a perimeter control system with long - range capabilities and tamper - proof characteristics that detects…
a perimeter control system with long - range capabilities and tamper - proof characteristics that detects motion by transmitting and receiving electromagnetic energy.\nbiometrics\nmicrowave detectors\nlocal alarms\nquestion 26 (1 point)\nalarm systems designed to prevent and/or detect intrusion on a hotel or motels property or grounds.\nclosed - circuit television\ncontact alarms\nperimeter control\nquestion 27 (1 point)\na perimeter control system in which a filtered light beam passes between a sending and receiving unit; any break in the beam sets off the alarm.\nperimeter control\nphotoelectric light beam\nmicrowave detectors
Answer
Brief Explanations:
- For the first question, microwave detectors detect motion by transmitting and receiving electromagnetic energy, which matches the description. Biometrics is related to human - biological characteristics for identification and local alarms are a general category not specific to this electromagnetic - based motion detection.
- For the second question, contact alarms are designed to prevent and detect intrusion on property by sensing contact - related changes, like a door or window being opened. Closed - circuit television is mainly for monitoring and perimeter control is a broader category.
- For the third question, a photoelectric light beam system has a filtered light beam between a sending and receiving unit, and a break in the beam sets off the alarm, which is exactly what is described. Perimeter control is too general and microwave detectors work on a different principle.
Answer:
- B. Microwave detectors
- B. Contact Alarms
- B. Photoelectric light beam